Transfer revoking mechanism



June 10, 1941. c; 3, BROWN 2,244,866

IRANSFER REVOKING MECHANISM Filed Sept. 25, 1940 3 Sheets-Sheet 1INVENTOR 64/81; 0. Brow/v. BY 8Y5 Attorney.

June 10, 1941. I Q Q BROWN 2,244,866

TRANSFER REVOKING MECHANISM Filed Sept. 25, 1940 3 Sheets-Sheet 2INVENTOR. CAEL 0. Beam/xv;

June 10, 1941. c. D. BROWN TRANSFER REVOKING MECHANISM Filed Sept. 25,1940 3 Sheets-Sheet 3 UllHJlHHHHIIHHHHIHIHHH INVENTOR.

C24, 0. Beow/y M 1.

Patented June 10, 1941 2,244,866 1 r TRANSFER REVQKING MECHANISM .Carl.D. Brown, Hopedale, Mass, assignor to 7 Draper Corporation, Hopedale,

' notation of Maine Mass, a cor- Application September 25, 1940-, SerialNo. 358,374 (o1. 1a9- -231) 9 Claims.

This invention pertains toautomatic filling replenishing looms and moreparticularly relates to transfer revoking mechanism for such looms.

Looms of the above general character are now usually provided withreplenishing mechanism automatically operative to replace either thebobbin or the shuttle upon substantial exhaustion of thefilling carriedthereby. A feeler mechanism usually detects the conditionof the fillingupon each alternate beat of the lay and upon detection ofsubstantial;exhaustionof filling initiates operation of the replenishingmechanism.

In addition to the abovemechanisms such looms may be provided a centerfilling fork mechanismv for stopping the loonr' upon the breakage orfailure of the filling. It may happen at times that the feeler mechanismwill call for operation of the replenishing mechanism and during thenext pick after: such call :the center filling forkopera tes to stop theloom, due to failure or breakage ofthe filling. In such event, the laywill be stopped before a complete transfer can be made and the shuttleor other parts of the loom maybe damaged. In such cases, it is essentialthat'the callfor operationfoffthe replenishing mechanism be revoked.

Accordingly, it is a principal object of my invention to provide an'automaticfilling replenishing V loom having automatic replenishing 3omechanism of the typefincluding a reoiprocatory mechanism, feelermechanism, a center fork member and means operated by the center forkfor arresting the movement of the reciprocatory membejr loom stoppingmeans, means for re-' voking the initiative operation of the feelermechanism, and means carried by the recipro- V catory member foractuating the loom stopping means and the revoking means upon thearresting of the movement of the reciprocatory member by the centerfork.

The foregoing and other objects of the invention are accomplished in theconstruction illustrated on the accompanying drawings, of which:

Fig. 1 is a perspective view of a portion of the loom showing the feelermechanism and the center fork mechanism, some of the parts being brokenaway;

Fig. 2 is a perspective view of a portion of the loom showing thereplenishing mechanism;

Fig. 3 is a perspective view of a portion of the loom showing theconnection between the starting rod and shuttle feeler;

Fig. 4 is a plan view of a portion of the right hand side of theloom; T

Fig. 5 a'f ront-viewof a portionof the right Fig. 6 is a fragmentaryview'showing the re-' lation. of the shuttle feeler and the lay; and

I Fig. "I is a fragmentary view showing the rela- I tion of thetransferrer andthe lay. Theparticular loom shown on the drawings vincludes'a rep emsmn mechanism for replacing the exhausted fillingsupplywith a f resh supply, a feeler mechanism for feeling the fill- T ing onthe bobbin to detect the condition'thereof and upon detection ofsubstantial exhaustion of fillin'g to set in operation a train'ofmechanisna to call for operation of the replenishing .mechanisni', acenter fork stopping mechanism for stopping the loom upon failure orabsence of filling in the shed 'and a transfer revoking mechanism undercontr'olof and actuated by the center fork mechanismfor' revoking anyexisting call for transfer upon the stoppage of the loom by'the centerfork mechanism.

The loom {frame may be of the usual-construction and the side framesthereof are connected by thebrea'st beam l upori the left hand side ofwhich is'mounted the'feeler mechanism.

The feeler mechanismpnd the associated parts maybe of any suitablecharacter, the essential in thisrespe-ct being that upon' each detectingbeat the feeler will detect the'fcondition of the j filling in' theshuttle and when it has reached 'a' certain degree of exhaustion willcall for a change of filling. The feler mechanismillu'strated in thepresent instance may be ofjthe'same general type as'shown and describedmore "fullly in the Bro and'Repa ssBatent No. 1,593,426,

granted"July 20, 192

The feler mechanism may-include a stand 2 for the'support of a feeler 3and atransmitterj 4 connected to a bell crank (not visible on'thedrawin'g's) pivotally mounted on actuator 5.

Upon the transmitter 4 being moved to 'theright as seen on'Fi'g. i' 1;the bell' crank moves'into a position permitting'the actuator 5 to beengaged by and slid forwardlyiby a cam follower (not show'ni. Actuator 5is pivotally connected to an upwardly extending arm Sfixr dly secured;to

rocker shaft l'. 'I'he rocker jsha'ft 1 is journaled,

atoneend in a bracketlb 3 fi1 .8 on the left hand side of thebreastbeam(Fig l) and at the .other end is iournalled-in bracket bearing 9 on tthe right hand side of the breast :(F ig. 3).. Fixedly connected to:shaft-"[ adjacent the bracketbearingS is a-l ev erlflpivotallylconnected to a member ilfhavirig a iorkedendjfor engagecment with "a pin l-Z projecting fromthe shuttle pivotally mountedon thebracket.

feeler l3. Shuttle feeler I3 is pivotally mounted on a stand it securedto the right hand loomv side l5. Pivoted on shuttle feeler l3 at 16 is alatch depressor ll engaging a projection ii on latch 19. Latch I 9 ispivotally connected to arm 23 of the transferrer 2| and is adapted whenraised to operative position to engage a bunter 22 on theusualreciprocating lay 22'.

The replenishing mechanism may comprise a rotary battery indicatedgenerally at 23, carrying a reserve supply of bobbins, a transferrer 2iand a spring 24 for normallyholding the transferrer in raised position.When latch 'l 9 is raised to operative position to call for transfer,the bunter 22 will engage latch I!) on the forward beat of the lay andmove the transferrer downwardly thereby inserting a fresh-bobbin in theshuttle.

The center fork mechanism and the associated parts may be of anysuitable character, the essential in this respect beingthat upon eachpick of the shuttle the fork will detect the presence or absence offilling in; the shed and upon the detection of absences-r failure offilling in 1 the shed mechanism will be set in operation to stop theloom. The center fork mechanism illustrated inthe presentinstance may beof the same general typeas shown and described more fullyin the LindsjoPatent No. 1,855,930 granted July 5,1932. t l

The center fork mechanism may include a bracket 25 mounted on the lay 22substantially centrally thereof. A rocking carrier ZE to which the tines21 of the center fork are secured 1s The axis of the carrier ttmayextend to one side of the bracket as at 28, and connected with theextension 23 is a light spring 29 which serves to impart to the tines ofthe fork a downward movement for ascertaining whether or not filling hasbeen laid in the shed. Slidably mounted in bracket 25 's a reciprocatingrodtil which ex tends longitudinally of the lay. At one end of:

the rod- 38] is {a bomber 3| as shownooFigs. 4 and 5 At -th-e other endrod 30 is pivotally connected to, a bell crank lever 32 pivotallymounted on; a bracket 33 on the lay. One arm of bell crank lever 32 isprovided with a hunter 34 extending forwardly therefrom as shown on Fig.l. The other arm of the bell crank lever 32 extends in the path of anactuating rod '35 whose lower end passes through a guide 36 secured tothe lay sword 31 as seen on Fig. 1. Pivotally mounted on a bracket 38secured to the loom frame is a lever 39, its pivotal point being locatedbetween the ends of the lever and the forward end thereof having a pinand slot ,connection with the actuating rod 35. The rearwardlyextendingend All of thelever bears against a.

cam H on the cam shaft .42. The cam .41 is a two lobe cam and the camshaftfl makes one.

revolution to each two revolutions of. thev crank shaft which operatesthe lay. V

From the construction so far described it is apparent that the rod 30will be moved lengthwise of the lay in one direction bythe connection tothe cam shaft 42. To move the rod 33 in the opposite direotionandtherebygive it reciprocatory movement I provide a spring 43 between a pair ofcollars 44, 45. Stops 45 and 4'! are provided on bracket 33 to limit themovement of vtherod 3D longitudinally of the lay.

Secured to the rod. 30 is a cam member 48 having cam portions 49. and 50with a notch 5! therebetween. Extending laterally of the axis of thecenter fork is a stop finger '52 which moves with the center fork. Whenthe cam member 43 is moved longitudinally of the lay to the left (asviewed on Fig. l), the stop finger 52 will ride along thein-clinedsurfaces of the cams l9 and 59, thereby lifting the tines of the centerfork to permit the shuttle to pass. As the rod 39 is moved to the rightby the spring 48, the tines of the center fork will drop under theinfluence of gravity plus the spring 29 and if filling has been laid inthe shed the tines will come to rest upon and be supported by thefilling, however if filling is absent or breaks the tines will drop intoa recess 52 on the lay, thereby causing the stop finger 52 to ride downthe incline 5t and engage with the notch 5! and stop movement of the rod39. When the movement of rod 30 is stopped by the center fork, in theabove described manner the bunter 3! is properly positioned to actuatethe revoking mechanism to revoke any existing call for transfer and thehunter 34 is properly positioned to actuate the loom stopping mechanismall as will be more fully described hereinafter.

The loom stoppage mechanism actuated by the center fork mechanism may besimilar to that shown and described in the aforementioned patent toLindsjo. Such mechanism may include a knock-off plunger 53 located onthe breast beam and aligned to be engaged by the hunter 34 when thehunter is positioned to stop the loom by. the center fork mechanism. Theplunger 53 extends forwardly and is connected at 5'4 with a knock-offlever 55, which is piv otally mounted on the breast beam with its op-The mechanism for revoking a call for transfer may comprise a projection'51 on the shuttle feeler l3. The projection 51 is in alignment with thehunter 3| when the movement of the rod 33 is stopped by the center fork.When the rocker shaft 1 is turned by the feelermechanism to raise thelatch is into position tocall for transfer, the shuttle feeler l3 isalsoraised into position to feel the shuttle and see if the shuttle isproperly positioned within the shuttle box The projection 51 onthes-huttle feeler will make contact with the hunter .3land willbe-moved forwardly, thereby moving with it the latch' l5; and preventingcontact betweenlatch l 9 and the V bun'ter 22 carried by the lay. 7 v av The operation of the device is as follows:

Assume the shuttle has just been picked along the lay from right to leftand is in the left hand shuttle box as shown on Fig. I On the forwardbeatof thelay the feeler mechanism detects substantial exhaustion of thefilling on the bobbin and through the mechanism of the transmitter 4 andactuator 5 therocker'shaft or starter rod i is turned, thereby raisingthe shuttle feeler l3 and latch l9 to'operative position to call for atransfer on the next forward beat of the lay. Now, if as the shuttle ispicked from left to right there is a' failure of filling in the shed,the center fork will act to stop the loom, with the result that ifnothing was doneto revoke the call for transfer, only a partial transferwould take place before the loom came to rest; However,

with the present invention, if asthe shuttle is pickedfrom left toright-there is a failure of;

I9 andthe bunter, 22 on the lay,.or in other words revoking the call fortransfer.

Having thus fully disclosed the. preferred embodiment of my invention, Iclaim:

1. In a filling replenishing loom, the combination of a reciprocatinglay, replenishing mechanism including a latch movable to positioncallingfar replenishment of filling, a center fork stop motion including afilling fork, a reciprocatory member mounted on said lay, means forreciprocating said member, said member having means intermediate itsends for raising said filling fork as said member reciprocates, meanscarried by said fork for arresting the movement of said member when saidfork detects absence of filling in the shed, and means actuatedby saidmember upon the forward beat of the lay, to move said latch toinoperative position when arrested in its movement, whereby any existingcall for replenishment is revoked. 2. In a fillingreplenishing loom, thecombination of, a reciprocating lay, replenishing mechanism including alatch movable to position calling for replenishment of filling, meansfor moving said latch to said position upon substantial exhaustion offilling in the shuttle, a center fork stop motion including a centerfork, a reciprocating rod mounted on said lay and having meansintermediate its ends for raising said center fork as said rodreciprocates, means for reciprocating said rod, means operated by saidcenter fork for arresting the movement of said rod when said forkdetects absence of filling in the shed, loom stopping means, and latchrevoking means, said loom stopping means and said latch revoking meansbeing actuated by said rod upon the forward beat of the lay when the rodis arrested in its movement as aforesaid, whereby said loom is stoppedand any existing call for replenishment revoked upon detection ofabsence of filling by the center fork.

3. In a filling replenishing loom, the combination of a reciprocatinglay, transfer mechanism including a; latch, means actuated upon thesubstantial exhaustion of filling in the shuttle, to move said latchinto a position to be engaged by the lay and thereby operate saidtransfer mechanism, a center fork, a member mounted on said lay forreciprocatory movement longitudinally thereof and having meansintermediate its ends for raising said center fork as said memberreciprocates, means for reciprocating said member, means operated bysaid center fork for arresting the movement of said member when saidfork detects absence of filling in the shed, loom stopping means andlatch revoking means. both said last named means being actuated by saidmember upon the forward beat of the lay when arrested in its movementwhereby said loom is stopped and any existing call for operation of saidtransfer mechanism by said latch is revoked upon detectionr of absence;of fillingby said center fork;

4. In a loom having a reciprocating lay, the combination of automaticreplenishing mechae 1 nism including a latch movable to operativeandinoperative positions, said latch when in oper ative positionparticipating in the operation of said replenishing mechanism, acenterfork stop motion comprising'loom stopping mechanism, a reciprocatorymember movable longitudinally of the lay and mounted thereon, meansforreciprocating saidmember, said member having means adjacent one endpositionable to actuate said loom stopping mechanism and also havingmeans adjacent the other end positionable to move said latch toinoperative position, a center fork, means controlled by said centerfork for stopping reciprocation of said member on detection of fillingfailure with said second named means in position to actuate said loomstopping mechanism upon the forward beat of the lay and said, thirdnamed means in position to move said latchjto inoperative position uponthe forward beat of the lay whereby upon the forward beat of the laysaid loom is stopped'and said movement of. saidlatch prevents operationof said transferring mechanism.

5. In a filling replenishing loom, the combination of a reciprocatinglay, loom stopping mechanism, a breast beam, a filling. feeler .on saidbreast beam, a train of mechanismto initiate replenishment of fillingunder control of said filling feeler including a latch movable tooperacenter filling fork stop mechanism effective .to;

stop said loom on the absence of filling in the shed, a sliding rodmounted on said lay for reciprocation longitudinally thereof, means forreciprocating said rod, a projection on each end of said rod, and meanscontrolled by said center fork mechanism for positioning said rod uponabsence; of filling in said shed so that upon the forward beat of thelay one of said projections actuates said stopping mechanism forstopping the loom and the other projection moves said latch to theinoperative position thereby rendering said replenishing mechanisminoperative.

6. In a filling replenishing loom, the combination of a reciprocatinglay, transferring mechanism including a latch movable to operative andinoperative positions, said latch when in operative positionparticipating in the actuation of said transferring mechanism by saidlay, feeler mechanism operable upon substantial exhaustion of thefilling to move said latch to operative position, loom stopping meansincluding a filling fork mechanism for actuating said stopping meansupon the absence of filling in the shed, said filling fork mechanismincluding a slidable member mounted on said lay and movable intoposition for actuating said loom stoppind means upon the forward beat ofthe lay, means for moving said member. and means carried by saidslidable member and operable when said slidable member is moved to loomstopping position to move said latch to inoperative position upon theforward beat of the lay thereby preventing actuation of saidtransferring mechanism.

7. In a filling replenishing loom, the combination of a reciprocatinglay, a center fork mounted on the lay, a bunter pivotally connected tothe lay for swinging movement longitudinally thereof, a cam shaft havinga cam for'causingmovement of the hunter about its pivotal connectionwith the lay in one direction longitudinally'thereof, aspring for movingthe bunter longitudinally of the lay in the opposite direction;

a rod connected to the hunter for movement thereby, a cam deviceconnected to the rod for raising the center fork as the hunter is swungabout its pivot by its actuating cam and a looking notch formed in thecam device, an arm actuated'by the center fork for engagement with saidlocking notch when the center fork detects absence of filling in theshed, a knock-off plunger actuated by the hunter upon the forward beatof the lay to stop the loom when the bunter is arrestedin its movementand means actuated by said rod upon the forward beat of the lay torevoke any existing call for operation of the replenishing mechanismwhen the rod is arrested in its movement.

8. In a filling replenishing loom, the combination of a reciprocatinglay, replenishing mechanism including a latch movable to positioncalling for replenishment of filling upon substantial exhaustion offilling in the shuttle, a center for stop motion comprising areciprocatory rod mounted upon said lay for movement longitudinallythereof and having a hunter adjacent each end, means forreciprocating'said rod, a cam device connected to the rod for raisingthe center fork as the rod reciprocates, a locking notch formed in thecam device, anarm actuated by the center fork for engagement with saidlocking notch When'the center fork detects absence of filling in theshed, a'knock-off plunger actuated by one of said bunters upon theforward beat of the lay to stop the loom-when said rod is arrested inits movement and means actuated by the other of said bunters upon theforward beat of the lay to'move said latch to inoperative position whensaid rod is arrested in its movement thereby revoking any existing callfor replenishment.

9. In an automatic replenishing loom, the combination of a reciprocatinglay, replenishing mechanism including a latch movable from inoperativeto operative position, means for moving said latch to operative positionupon substantial exhaustion of filling in the shuttle, said latch whenin operative position calling for and participating in the operation ofsaid replenish ing mechanism and a center fork stop motion comprisingloom stopping mechanism, a reciprocating member mounted on said lay andmovable longitudinally thereof, means for reciprocating said member,said member having means adjacent one end positionable to actuate saidloom stopping mechanism upon the forward beat of the lay and meansadjacent the other end positionable to revoke the call of said latch foroperation of said replenishing mechanism by moving said latch toinoperative position upon the forward beat of the lay, said third namedmeans being in revoking position when said second named means is in loomstopping position, a center fork for detecting filling failure andoperable upon detection of filling failure to stop said reciprocatingmemberwith said second nained means in position to actuate said loomstopping mechanism upon the forward beat of the lay, whereby after saidcenter fork has acted to stop said loom any existing call for operationof said replenishing mechanism is revoked.

CARL D. BROWN.

